I am using your TVicLPT component in Delphi 7 using the IRQTest Application program for reading multiple interrupts.

I would like to use the IRQTest program without having to click on any buttons or checkboxes. When I delete the buttons (Open TVicLPT, etc.) and checkboxes (unmask irq, etc) and put the code together the program does not work all the time.

I would like to integrate this code into my program, but need it to work without any clicking of buttons.

The origional IRQTest does not always work. I sometime have to wait a long time or reset my XP computer.

Thanks for the reply. No offense taken. I just want the component to work WITHOUT having to click any buttons to start it.

I did exactly what you suggested (before and now again). Still no success.

I figured that maybe I must look at the hardware as you are very confident about the component.Maybe you had such a problem in the past. I first run your original IRQTest program with the buttons - then everything works. I then run the modified program without any buttons but code as you suggested. It only sees the first event.When I run the original IRQTest program again then it does not work.I must then restart Windows XP.What could be wrong.